baber/WOPTO huggingface dataset:
Patent GB-1433588-A (GB)
Title: Arrangement for the signal/noise ratio of signals picked up by  aerials comprising a plurality of elements
IPC: H04B7/08
Filed: 1967-07-30
Abstract: 1433588 Diversity reception COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 30 July 1967 [13 Oct 1966] 25201/67 Heading H4L An arrangement for improving the signal/ noise ratio of signals occupying a narrow band and picked up by an aerial composed of a plurality of pick-up elements, comprises, as shown, two aerial elements I 1 , I 2  associated respectively, with channels 2 1 , 2 2  having delay networks 3 1 , 3 2  and band-pass filters 5 1 , 5 2 , the filter band width being equal to the narrow band of the useful signals S to be detected. The networks 3 1 , 3 2  ensure that two completely identical useful signals S are present at the two outputs 4 1 , 4 2 . The noise signals denoted by B 1 , B 2 , received by the aerial elements I 1 , I 2 , respectively, are of equal average power and have cross-correlation properties. The signals # 1 =S+B 1  and # 2 =S+B 2  are applied to an assembly E 1  to derive two voltages u, v, these voltages together with the aforementioned signals being applied to an assembly Eg to derive an output signal from an amplifier 76 having an inproved signal/noise ratio. The assembly E 1  comprises a member 14 for obtaining the difference B 1 -B 2 , a voltage squarer 15 and a low-pass filter 16 having a time constant of the same order of magnitude as the slow variations of the noises, the voltage u being taken from the filter output. The voltage u represents the average power of the difference of the noises B 1 , B 2 . The voltage v is taken from the output of a filter 13 having the same time constant as the filter 16. The input of filter 13 is connected to a multiplier 12 in which signals # 1  and # 2  are multiplied, the signal # 1  being phase shifted through in a phase converter 11, so that the voltage v is independent of signal S. The voltage v represents the average of the product of the noises B 1 , B 2 . The assembly Eg comprises adding devices 77, 79. In device 77 signals # 1 , # 2  are added whereas in device 79 signals # 1 <SP>1</SP>, # 2 <SP>1</SP> are added, the signal # 1  being phase shifted through in converter 78, to become signal # 1 <SP>1</SP> and signal # 2  being phase shifted through  to become signal # 2 <SP>1</SP>. The outputs of devices 77, 79 are multiplied in multipliers 81, 82, respectively, by the voltages u, v. The outputs of the multipliers are supplied to an adder 83 feeding the amplifier 76 having its gain controlled by the voltage u.
Patent GB-780594-A (GB)
Title: Improvements in apparatus for detecting sources of infra-red rays
IPC: H04B10/60
Filed: 1954-08-31
Abstract: 780,594. Detecting infra-red. BRINRO, Ltd. Aug. 31, 1954 [Sept. 14, 1953], No. 25279/54. Class 40 (3). [Also in Group XXXVI] Apparatus for detecting infra-red comprises a condenser the capacity of which varies in response to infra-red rays and which forms part of an electronic device for producing an audible indication of the ray intensity. As shown (Fig. 1) the apparatus comprises a pair of condensers 7, 7<SP>1</SP>, both of which have dielectric constants variable by incident infra-red. A "Lenard" phosphor which may include zinc and/or cadmium combined with sulphur selenium or tellurium may be used. Condenser 7 is arranged to receive infra-red rays while condenser 7<SP>1</SP> is shielded from them and is used to provide temperature compensation. Each condenser controls the oscillation frequency of one of a pair of electron-coupled oscillators I and II which, in the absence of infra-red, both oscillate at the same frequency. Infra-red incident on condenser 7 changes the frequency of oscillator I. The outputs of the oscillators are combined in a mirror 3 and the beat frequency is audible in a telephone receiver 4. In a modification (Fig. 4) the condensers are replaced by a network comprising tube 17, condenser C1 and infra-redsensitive resistor R, the whole circuit acting as a capacity. Resistor R may be of PbS, PbSe or PbTe. Fig. 3 shows the mounting of the infrared sensitive condensers 7, 7<SP>1</SP> in the housing. Capacitor 7 is subject to the action of infra-red passing through a filter 5 which may be closed by a shutter 14. Capacitor 7<SP>1</SP> is mounted behind a screen and coils L<SP>1</SP>, L<SP>2</SP> are carried by support plates 15, 16. The housing 8 may be mounted in a soldier's helmet or on a rotating support such as an automatically controlled gun.
Patent GB-186338-A (GB)
Title: Improvements relating to the cleansing and tinning, galvanizing or otherwise coating of metals by dipping
IPC: C23C2/30
Filed: 1922-09-19
Abstract: 186,338. Burlet, L. J. G. de, and BÚque, V. L. J. Sept. 19, 1921, [Convevtion. date]. Cleaning and pickling; fluxes.- Metal articles, prior to tinning, galvanizing &c., are cleaned and fluxed, without previous pickling, in a concentrated solution of the double chloride of zinc and ammonium (2NH4Cl.ZnCl2.H2O) at a density of not less than 35‹ BeaumÚ which is kept boiling (110‹ C) during immersion of the articles. The bath is regenerated by means of thin zinc strips which are dipped into it to precipitate the iron &c. in solution. Articles may be left to dry up to 24 hours before galvanizing or 6 hours before lead coating or tinning. The metal bath is preferably divided by a partition so as to separate at the surface the burned ammonium salts formed at that side of the partition at which the articles are introduced from the oxide of the coating metal formed on the other side of the partition. According to the Specification as open to inspection under Sect. 91 (3) (a) the cleaning process may be accelerated by a preliminary immersion of the articles in dilute hydrochloric acid. This subject-matter does not appear in the Specification as accepted.
Patent GB-501151-A (GB)
Title: Improvements in or relating to riding stirrups
IPC: B68C3/00
Filed: 1937-09-17
Abstract: 501,151. Stirrups. HUGHES, C. L. (Hart, A. F.) Sept. 17, 1937, No. 25298. [Class 62] The stirrup comprises a sole plate 2 and toe cap 1 integrally cast with the support 4, the sole plate preferably being lined with rubber 5 and the toe cap with felt. According to the Provisional Specification, the stirrup may be formed in two parts rigidly connected together.
Patent GB-840228-A (GB)
Title: Improvements in or relating to railway vehicles
IPC: B61F5/16
Filed: 1957-08-10
Abstract: 840,228. Mounting bodies on railway vehicles. HIRST, T E. C. July 30, 1958 [Aug. 10. 1957], No. 25318/57. Class 103(6). Suspension means for a rail car comprise a solid or hollow rubber block 4, Figs. 1, 2, disposed between cup members 3, 6 spaced apart by a rubber bush 7 and attached respectively to a transverse member 2 of the body and a transverse member 5 of the bogie, and flexible cables 10 attached to the body and the ends of the wheel axles
Patent GB-1167409-A (GB)
Title: Striking Mechanism, Preferably for Boring Machines
Inventor: BELAN NIKOLAI ALEXEEVICH
IPC: B25D9/12
Filed: 1967-06-01
Abstract: 1,167,409. Boring machine details. KUZNETSKY NAUCHNO-ISSLEDOVATELSKY UGOLNY INSTITUT. 1 June, 1967, No. 15353/67. Heading B3C. [Also in Division B4] A striking mechanism for a percussive tool, such as a rotary-percussive boring machine, comprises strikers 3 mounted in cylinders 2 and arranged to be actuated by a pressurized liquid under the control of a distributing arrangement 9, plungers 8 being moved by the pressure of the liquid to impart progressive motion of the strikers. The plungers 8 are mounted in bores 7 formed in a block 6 which is urged by a spring 18 into contact with a distributor 11 rotatably mounted in a housing 10; pressurized liquid is fed through passages 12 into the bores and exhausted therefrom via passages 13. Four strikers are mounted in a casing 1 and arranged to abut an anvil 4 in contact with a tool bit 5. In a modification the block 6 is connected to a rotatable body (23, Fig. 7) and co-operating with a fixed liquid distributing device (24). The body (23) is rotated by a motor (21) which also serves to rotate the tool bit 5.
Patent GB-1065284-A (GB)
Title: Carburetters for internal combustion engines
Inventor: SWATMAN PETER PHILLIMORE
IPC: F02M7/17
Filed: 1964-06-19
Abstract: 1,065,284. Spray carburetters. S. U. CARBURETTER CO. Ltd. May 14, 1965 [June 19, 1964], No. 25369/64. Heading F1B. A suction actuated piston 3, which restricts the primary air passage 2 at 18, is loaded by a spring 38 through a lever 33 which is in turn pivoted about the end 36 of a pivotally mounted rod 40, the arrangement being such that the loading decreases as the piston moves to increase the cross-sectional area at 18. The lever 33 is housed in a chamber 7 containing oil and communicating via permanently open ports 30 and a ball-controlled port 31 with a chamber 7A in which the end of the piston rod 23 moves. Piston oscillations are thus damped and when the throttle 5 is opened suddenly, the descent of the piston is slowed and the mixture is thus enriched momentarily. Fuel from a float chamber (not shown), lying alongside the chamber 7, is sucked through a pipe 16 to a tube 10A, at the end of which is formed a nozzle 10 controlled by a needle 15 carried by the piston. For starting, pipe 16 and tube 10A together with a junction piece 17 can be shifted axially with respect to the needle 15 by an arm 19 pivoted at 20.
Patent GB-517246-A (GB)
Title: Improvements in and relating to speed governing mechanism
IPC: G05D13/00
Filed: 1938-08-30
Abstract: 517,246. Speed governors. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 30, 1938, No. 25413. Convention date, Aug. 31, 1937. [Class 57] [Also in Group XXIX] A centrifugal governor 12 is driven by a synchronous motor 17 supplied by either a 4-pole alternator 13 or an 8-pole alternator 14, both of which are driven by the turbine 10, the connection being selected by closing one or other of the switches 19, 20. The regulating valve 11 is actuated by a piston 29 controlled by a control valve 23, and the piston 29 and control sleeve 26 are connected to the lever 27 pivoted at 44 to a nut 40. The speed setting is varied by actuating switches 32, 33 controlling a reversible motor 30 which raises or lowers the nut 40. During its movement an arm 53 on the nut 40 engages abutments 54, 55 to move a switch 46 to energize solenoids 49 or 50 to actuate switches 19 or 20. When the solenoid 49 is energized, a solenoid 66 is also energized to raise a control valve 64 and admit pressure fluid to raise the piston 58 and raise the spindle 37, carrying the nut 40, on its spindle 36.
Patent GB-1463312-A (GB)
Title: Vehicle lamp assemblies
IPC: F21S8/12
Filed: 1973-05-29
Abstract: 1463312 Vehicle headlamps LUCAS ELECTRICAL Ltd 16 May 1974 [29 May 1973] 25438/73 Heading F4R A vehicle headlamp assembly comprises an ellipsoidal reflector and an electric lamp filament disposed in an inner focal plane of the reflector, the axis of the filament being perpendicular to the principal axis of the reflector and inclined at an angle of 30-45 degrees to a horizontal plane containing the principal axis.
Patent GB-682870-A (GB)
Title: Improvements in or relating to shuttering for use in building concrete structures
Inventor: SUTCLIFFE ALFRED
IPC: E04G9/06
Filed: 1949-10-04
Abstract: 682,870. Wall shuttering. RAPID METAL DEVELOPMENTS, Ltd. Aug. 28, 1950 [Oct. 4, 1949], No. 25444/49. Class 20(ii) Wall shuttering comprises metal flanged panels 1, Fig. 1, secured together along their abutting flanges 3 and to scaffolding 2 by means of U-shaped screw-operated clamps 4a having hook-shaped jaws 5 engaging registering slots 4 in the flanges, some of the clamps co-acting with the edges of the abutting flanges and others with the scaffolding 2. Each clamp 4a, Fig. 2, has a central clamping screw 7 engaging a nut 8 in the reinforced web 9 and formed at one end with a floating abutment 12 having projections 13 engaging the side or edges of the flanges 6 of the clamp. The jaws 5 are formed with converging throats 10 which operate with a wedging action against the ends of the registering slots, which ends are tapered to assist this action. The scaffolding may comprise I-section members. Specification 682,916 is referred to.
Patent GB-1291752-A (GB)
Title: A fluid system coupling
Inventor: SCIUTO JOSEPH SAMUEL JR
IPC: F16L37/23
Filed: 1970-05-27
Abstract: 1291752 Pipe couplings STILE CRAFT MFRS Inc 27 May 1970 25446/70 Heading F2G A pipe coupling has a-stepped female adapter 10 able to sealingly engage with a number of plugs 30, (31), Fig. 3, not shown), having identical features but different dimensions. As shown in Fig. 1, the adapter 10 has a front body portion 11 and a rear body portion 12 having a first socket portion 13, a second socket portion 14 and an intermediate socket portion 15. The plug 30 has a nose section 50 and a tail section 51 the latter including a forward portion 53 and a rearward portion 54 separated by peripheral groove 55. Depending on their particular dimensions the insertion of one of these interchangeable plugs 30, (31) will be limited by one or more of the shoulders 20, 21, 22 on the adapter fitting 10. The plugs 30, (31) are locked in position by detent balls 27 within holes 26 which are depressed by sleeve 32 under the action of spring 33. Sealing is selectively performed by rings 17, 25. As shown in Fig. 2, both rings are in use. In Fig. 3 (not shown), the plug (31), which has a shorter and wider nose section (60) only engages the ring 25 and distorts it. To prevent unnecessary wear of the ring 25 a valve 40, having notched legs 44 designed to engage the nose section of such plugs, attempts, under the action of spring 37, to disengage the locked plug; sufficient movement is produced to eliminate distortion of the ring and maintain a seal.
Patent GB-1306970-A (GB)
Title: Semiconductor circuit
IPC: H01L31/111
Filed: 1970-05-27
Abstract: 1306970 Semi conductor devices SONY CORP 27 May 1970 [23 May 1969(3)] 25483/70 Heading H1K A semi-conductor device comprises a low conductivity substrate with three higher conductivity regions therein, the first and third regions being of one conductivity type, the second region being of the opposite conductivity type biasing means being provided to bias the third region and to forwardly bias the first and second regions the regions being arranged so that the distance between the first and second regions is greater than that between the second and third regions, which in turn is greater than the distance between the third and first regions. The substrate may be of n or p type silicon, the regions being of p, p<SP>+</SP>, n or n<SP>+</SP> material. The device may be susceptable to light and to a magnetic field. With suitable biasing the device may become a negative resistance element. In an alternative embodiment four regions may be provided, only three of which are used at any one time.
Patent GB-796842-A (GB)
Title: Improved polymer composition
IPC: C08L23/22
Filed: 1956-08-21
Abstract: A composition comprises a mixture of (1) from 5 to 25 parts by weight of a copolymer of styrene, or a methyl or ethyl substituted styrene, and an olefin of 3 to 5 carbon atoms, which copolymer contains 45 to 65 per cent of styrene or a substituted styrene, a molecular weight of between 5,000 to 20,000 and an intrinsic viscosity of less than 0.5; and (2) from 95 to 75 parts by weight of a polymer of an iso-olefin, e.g. isobutylene, of less than 8 carbon atoms per molecule and of molecular weight above 100,000. The substituted styrene may be alpha-methyl styrene, para-methyl styrene, alpha-methyl-para-methyl styrene, or paraethyl styrene. The compositions may be extruded into rods or on to wires.
Patent GB-861916-A (GB)
Title: Improvements in or relating to photo-electric exposure meters fitted into motion picture cameras
Inventor: HATAJ JOSEF
IPC: G03B7/099
Filed: 1958-08-08
Abstract: 861,916. Exposure meters. MEOPTA NARODNI PODNIK PREROV ZAVOD MODRANY. Aug. 8, 1958, No. 25504/58. Class 40(3) In a photo electric exposure meter fitted in a motion picture camera the photosensitive surface is formed on the face of the camera rotary shutter on which the light is incident. Light passing through the camera objective lens 3 falls alternately on the shutter surface 5 or on the film F via the shutter aperture. The photoelectric layer 4 (e.g. selenium) is connected via conductive frame 6 to the collector ring 7 and thence via the brush 8 to the transistor amplifier 11. The transistor output is registered on the galvanometer 15 placed in the camera viewfinder. Resistor 12, shunted when the camera is operative by the switch 13, compensates for the difference in photocell output when the camera is at rest (steady D.C. output) and when the camera is running (trapezoidal shaped pulsed output). Resistor 16 adjusts the sensitivity of the circuit for the differing film speeds and frame repetition rates. Specification 400,906, German Specification 804,485, Italian Specification 505,233 and Swiss Specification 219,160 are referred to.
Patent GB-674181-A (GB)
Title: Improvements in means for feeding continuous stationery to printing machines
Inventor: KERR ROBERT LEONARD
IPC: B41L47/24
Filed: 1949-10-05
Abstract: 674,181. Addressing and like machines. ADREMA, Ltd. Oct. 5, 1950 [Oct. 5, 1949], No. 25591/49. Class 100 (ii). In an addressing or like series printing machine, continuous stationery is fed step by step past the printing position of the machine, the stationery web is folded along a transverse line of weakness previously provided in the web, and a bar is provided for engaging in the fold of the web and driven so as to advance the web. In the embodiment described a pile of fan-fold stationery is drawn through an addressing machine by a feeding unit 12, the web passing under a roller 14, adjustable vertically by a knob 58, and over a roller 15 after emerging from the addressing machine. The web then passes through transverse bars 16, 17, the bar 16 accommodating a wedge housing 19 having a wedge therein to allow one way movement only of the web. The web then passes through guides 59, 60. The feeding unit comprises a continuously driven shaft 22 which drives, through gears 23, 24, a shaft 25 having mounted at its upper end a crank arm 27 carrying an adjustable pin 28 working in a slot in a carriage 29 so as to reciprocate the carriage. The gears 23, 24 are such that shaft 25 is stationary for about 60 degrees of the rotation of shaft 22 in each cycle. The carriage 29 carries a shaft 30 and arms 33 mounted for slight rotational movement, the arms 33 being mounted through links 34 to arms 35 on a carriage 37 and to a shaft 38. The carriage 37 carries a shaft 36, and on shafts 36, 38 are mounted arms 39 the rear sides of which are connected by a plate 40 which cooperates with stop 41 for limiting clockwise rotation of the arms 39 when the shaft 38 moves rearwardly relatively to the shaft 36. The forward sides of the arm 39 carry rollers 42 which co-operate with a bar 43 of the carriage which is formed at its upper edge with a knife 20. In operation, as the carriages are moved rearwards the arms 39 are rotated in a clockwise direction,. owing to the pull on the link 34, until the stops 41 are engaged, the rollers 42 being raised from the bar 43 so as to deflect the leading edge of the stationary web downwardly. As the carriages are moved forward the arms 39 are rotated in an anti-clockwise direction so that the rollers 42 bear against the bar 43 and grip the web. The distance of travel of the carriages is determined by stops 45 adjusted by a knob 48 and is such that the web is folded by the action of the arms 39 at one of the lines of transverse weakness previously provided. The carriage 37 in its forward movement carries with it the web folded over the bar 43. At the end of the forward travel the web is cut by a guillotine blade 21 co-operating with the knife edge 20. The blade 21 is carried in a frame 49 (not shown) movable with the carriage 37 and urged upwardly by springs 52. A gear 57 rotated in timed relationship to the shaft 22 serves to operate an electric switch energising solenoid 55, which, through bar 53, pulls down the guillotine blade to sever the web.
Patent GB-771763-A (GB)
Title: Power-operated typewriters and type bar driving mechanisms therefor
IPC: B41J7/94
Filed: 1954-09-03
Abstract: 771,763. Typewriters. INTERNATIONAL, BUSINESS MACHINES CORPORATION. Sept. 3, 1954 [Sept. 8, 1953], No. 25615/54. Class 100(4) Type-actions; letter-by-letter adjustment. A type-action for a typewriter or like machine comprises a power roller 8, a typelever driven by a rockable lever 15 having a trip element 11 for imparting an initial movement to a cam'element 12 so that it engages the power roller 8, and control means whereby a variable driving connection is made between the cam 12 and the power roller. The control means consists of a lever 13, pivoted by shaft 19 to the lever 15, and which pivotally supports the cam 12. The pivot 18 for the cam 12 extends below the edge of the lever 15 so that when the cam 12 is pushed against the power roller 8 by the trip 11, the first of three basic stages of type-lever movement occurs. In this stage the cam 12, lever 10 and control lever 13 tend to rotate as a unit about pivot 14 of the lever 10. A finger 20 then contacts a control stop 21 to terminate the first stage and introduce' the second stage type-lever movement by the continued rise of cam 12 which urges pivot 18 away from power roller 8 and a torque, through the shaft 19, gives an accelerated movement to the lever 10. The third stage of movement comprises the free decelerating flight of the type-lever once the cam is free of the power roller 8. The variable driving connection is determined by the time of the first and second stage movements, controlled by the distance of each control stop 21 from each finger 20 of the levers 13. A series of control stops 21, having variously shaped cam surfaces are formed of resilient material and fitted in annular grooves in a control bar 36. There is one control stop for each type action, unless upper and lower case characters require a different driving connection, in which case two stops adjacent to one another are fitted and which are moved axially to be in alignment with the fingers 20 by case shift mechanism 48-54 moving the control bar 36. Collective adjustment. Collective adjustment is made by rotation of all stops 21 by rotation of bar 36 under control of a dial 57. Gradient control. In the event of some characters requiring a smaller increase in power than others in a collective adjustment the control stops are shaped accordingly.
Patent GB-1342970-A (GB)
Title: Composite closure and a container including such a closure
IPC: B65D55/08
Filed: 1971-04-19
Abstract: 1342970 Container closures CONTINENTAL CAN CO Inc 19 April 1971 [24 April 1970] 25666/71 Heading B8T A container 12 is provided with a neck portion 20 narrowing from shoulder 18 to.terminate in beading 28, and has a closure cap 14 comprising a rigid closure member 36 with attached, sealing gasket 38, loosely retained in a flexible outer fitment 34 which has a tamper-proof lift ring 50; the closure member 36 being normally held in position on the neck by the engagement of flange 66 under, the beading 28 with the skirt 46 of the fitment engaging the shoulder to leave no room for the insertion of a tool for prying off the cap. A circular recess 42 is formed in the closure member and co-operates with a perforation in the cap to provide a stacking ring; the perforation being formed between a flange 48 and lift ring 50 and crossed by a hinge portion 54 and tamper-proof frangible portions 52. On pulling the ring to remove the cap, the flange 66 first disengages the beading, then slides over it to engage the rigid closure member as shown in Fig. 5 and raise it, thereby overcoming vacuum in the container. The closure may be pressed back into position for re-use.